2002 Chevy Cavalier dtc p0420

2002 CHEVROLET CAVALIER
68,000 MILES • 6 CYL • FWD • AUTOMATIC
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B1UWZX26
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I am getting engine light on and the dtc code p0420 whitch is for catalystic performance below thereshold. what the cause would be? car is not over heating
Feb 18, 2008 at 3:16 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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